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marine biology
(Encyclopedia)marine biology, study of ocean plants and animals and their ecological relationships. Marine organisms may be classified (according to their mode of life) as nektonic, planktonic, or benthic. Nektonic...Kievan Rus
(Encyclopedia) CE5 Kievan Rus (c.1000) Kievan Rus kēˈĕfən [key], medieval state of the Eastern Slavs. It was the earliest predecessor of modern Ukraine and Russia. Flourishing from the 10th to the 13th cent....cloud
(Encyclopedia) CE5 Approximate heights of some types of clouds cloud, aggregation of minute particles of water or ice suspended in the air. Cloudiness (or proportion of the sky covered by any form of cloud),...Dostoyevsky, Feodor Mikhailovich
(Encyclopedia)Dostoyevsky or Dostoevsky, Feodor Mikhailovich fyôˈdər mēkhīˈləvĭch dəstəyĕfˈskē [key], 1821–81, Russian novelist, one of the towering figures of world literature. Notes from the Unde...nursing
(Encyclopedia)nursing, science of providing continuous care for sick or infirm people. While nursing as an occupation has always existed, it is only in fairly recent years that it has developed as a specialized pro...ameba
(Encyclopedia)ameba or amoeba both: əmēˈbə [key], common name for certain one-celled organisms belonging to the phylum Sarcodina of the kingdom Protista. Amebas were previously classified as members of the anim...totalitarianism
(Encyclopedia)totalitarianism tōtălˌĭtârˈēənĭzəm [key], a modern autocratic government in which the state involves itself in all facets of society, including the daily life of its citizens. A totalitarian...Western Sahara
(Encyclopedia) CE5 Western Sahara, territory (2015 est. pop. 526,000), 102,703 sq mi (266,000 sq km), NW Africa, occupied by Morocco. It borders on the Atlantic Ocean in the west, on Morocco in the north, on Alge...television
(Encyclopedia) CE5 Video transmission and reception of color and black-and-white television: The camera lens focuses collected light rays into mirrors, which separate the image into its three primary color compon...Matisse, Henri
(Encyclopedia)Matisse, Henri äNrēˈ mätēsˈ [key], 1869–1954, French painter, sculptor, and lithographer. Along with Picasso, Matisse is considered one of the two foremost artists of the modern period. His co...Browse by Subject
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